From: Tomasz Nowicki <tn@semihalf.com>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: bhelgaas@google.com, arnd@arndb.de, will.deacon@arm.com,
catalin.marinas@arm.com, rjw@rjwysocki.net,
hanjun.guo@linaro.org, okaya@codeaurora.org,
jiang.liu@linux.intel.com, Stefano.Stabellini@eu.citrix.com,
robert.richter@caviumnetworks.com, mw@semihalf.com,
Liviu.Dudau@arm.com, ddaney@caviumnetworks.com,
wangyijing@huawei.com, Suravee.Suthikulpanit@amd.com,
msalter@redhat.com, linux-pci@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org,
linux-kernel@vger.kernel.org, linaro-acpi@lists.linaro.org,
jchandra@broadcom.com, jcm@redhat.com
Subject: Re: [PATCH V4 12/23] x86, ia64, pci: Remove ACPI companion device from platform specific data.
Date: Wed, 10 Feb 2016 22:21:15 +0100 [thread overview]
Message-ID: <56BBA9CB.5060407@semihalf.com> (raw)
In-Reply-To: <20160209172800.GB22868@red-moon>
On 02/09/2016 06:28 PM, Lorenzo Pieralisi wrote:
> This patch has to be squashed with the previous one otherwise it
> has bisectability issues (ie the previous patch passes the parent
> to the pci_create_root_bus() call so, without this patch applied,
> the companion initialization would fail).
I do not think so. The previous patch passes the parent to the
pci_create_root_bus(), indeed, so pci_create_root_bus() set companion
device before calling pcibios_root_bridge_prepare() (for both cases x86
and ia64). In turn, pcibios_root_bridge_prepare() will do nothing, since
bridge->dev.parent != NULL. After all, pcibios_root_bridge_prepare() is
dead code.
>
> Other than that:
>
> Reviewed-by: Lorenzo Pieralisi<lorenzo.pieralisi@arm.com>
Thanks!
Tomasz
WARNING: multiple messages have this Message-ID (diff)
From: tn@semihalf.com (Tomasz Nowicki)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V4 12/23] x86, ia64, pci: Remove ACPI companion device from platform specific data.
Date: Wed, 10 Feb 2016 22:21:15 +0100 [thread overview]
Message-ID: <56BBA9CB.5060407@semihalf.com> (raw)
In-Reply-To: <20160209172800.GB22868@red-moon>
On 02/09/2016 06:28 PM, Lorenzo Pieralisi wrote:
> This patch has to be squashed with the previous one otherwise it
> has bisectability issues (ie the previous patch passes the parent
> to the pci_create_root_bus() call so, without this patch applied,
> the companion initialization would fail).
I do not think so. The previous patch passes the parent to the
pci_create_root_bus(), indeed, so pci_create_root_bus() set companion
device before calling pcibios_root_bridge_prepare() (for both cases x86
and ia64). In turn, pcibios_root_bridge_prepare() will do nothing, since
bridge->dev.parent != NULL. After all, pcibios_root_bridge_prepare() is
dead code.
>
> Other than that:
>
> Reviewed-by: Lorenzo Pieralisi<lorenzo.pieralisi@arm.com>
Thanks!
Tomasz
next prev parent reply other threads:[~2016-02-10 21:21 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-04 17:28 [PATCH V4 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 01/23] x86, pci: Reorder logic of pci_mmconfig_insert() function Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 02/23] x86, pci, acpi: Move arch-agnostic MMCONFIG (aka ECAM) and ACPI code out of arch/x86/ directory Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 03/23] pci, acpi, mcfg: Provide generic implementation of MCFG code initialization Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 04/23] x86, pci: mmconfig_{32, 64}.c code refactoring - remove code duplication Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 04/23] x86, pci: mmconfig_{32,64}.c " Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 05/23] x86, pci, ecam: mmconfig_64.c becomes default implementation for ECAM driver Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 06/23] XEN / PCI: Remove the dependence on arch x86 when PCI_MMCONFIG=y Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 07/23] pci, acpi, mcfg: Provide default RAW ACPI PCI config space accessors Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 08/23] arm64, acpi: Use MCFG and empty PCI config space accessors from mcfg.c file Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 09/23] pci, acpi, ecam: Add flag to indicate whether ECAM region was hot added or not Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 10/23] x86, pci: Cleanup platform specific MCFG data by using ECAM hot_added flag Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 11/23] pci, acpi: Move ACPI host bridge device companion assignment to core code Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-09 18:02 ` Lorenzo Pieralisi
2016-02-09 18:02 ` Lorenzo Pieralisi
2016-02-10 21:09 ` Tomasz Nowicki
2016-02-10 21:09 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 12/23] x86, ia64, pci: Remove ACPI companion device from platform specific data Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-09 17:28 ` Lorenzo Pieralisi
2016-02-09 17:28 ` Lorenzo Pieralisi
2016-02-10 21:21 ` Tomasz Nowicki [this message]
2016-02-10 21:21 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 13/23] pci, acpi: Provide generic way to assign bus domain number Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 14/23] x86, ia64: Include acpi_pci_{add|remove}_bus to the default pcibios_{add|remove}_bus implementation Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 15/23] acpi, mcfg: Implement two calls that might be used to inject/remove MCFG region Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-10 14:06 ` Lorenzo Pieralisi
2016-02-10 14:06 ` Lorenzo Pieralisi
2016-02-12 8:56 ` Tomasz Nowicki
2016-02-12 8:56 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 16/23] x86, acpi, pci: Use equivalent function from mcfg.c driver Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 17/23] acpi, mcfg: Add default PCI config accessors implementation and initial support for related quirks Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-29 8:03 ` Jayachandran Chandrashekaran Nair
2016-02-29 8:03 ` Jayachandran Chandrashekaran Nair
2016-02-29 8:03 ` Jayachandran Chandrashekaran Nair
2016-03-02 10:42 ` Lorenzo Pieralisi
2016-03-02 10:42 ` Lorenzo Pieralisi
2016-03-02 10:42 ` Lorenzo Pieralisi
2016-02-04 17:28 ` [PATCH V4 18/23] pci, of: Move the PCI I/O space management to PCI core code Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 19/23] drivers: pci: add generic code to claim bus resources Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 20/23] pci, acpi: Support for ACPI based generic PCI host controller init Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:28 ` [PATCH V4 21/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks Tomasz Nowicki
2016-02-04 17:28 ` Tomasz Nowicki
2016-02-04 17:29 ` [PATCH V4 22/23] arm64, pci, acpi: Assign legacy IRQs once device is enable Tomasz Nowicki
2016-02-04 17:29 ` Tomasz Nowicki
2016-02-11 11:58 ` Lorenzo Pieralisi
2016-02-11 11:58 ` Lorenzo Pieralisi
2016-02-11 17:17 ` Lorenzo Pieralisi
2016-02-11 17:17 ` Lorenzo Pieralisi
2016-02-11 18:39 ` Tomasz Nowicki
2016-02-11 18:39 ` Tomasz Nowicki
2016-02-11 18:46 ` Tomasz Nowicki
2016-02-11 18:46 ` Tomasz Nowicki
2016-02-04 17:29 ` [PATCH V4 23/23] arm64, pci, acpi: Start using ACPI based PCI host bridge driver for ARM64 Tomasz Nowicki
2016-02-04 17:29 ` Tomasz Nowicki
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